AM8052-1J21-9000 Beckhoff
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The Beckhoff AM8052-1J21-9000 is a synchronous servo motor from the AM Synchronous Servo Motors series with a 104 mm flange size and a shaft featuring a groove and feather key according to DIN 6885. It is equipped with a 24 VDC holding brake, an OCT multi-turn feedback type, and a rotatable angular connector or terminal box for connection. The holding torque ranges from 9 Nm to 20 Nm depending on the length.
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Product Description:
The AM8052-1J21-9000 is a synchronous servo motor manufactured by Beckhoff for the AM Synchronous Servo Motors series. This standard unit is intended to drive machine axes that require repeatable positioning, velocity control, and rapid reversals in automated production equipment. It transforms electrical power from a servo amplifier into controlled mechanical rotation for operating gearheads, timing belts, and other load interfaces. Closed-loop control allows the connected drive to correct changes in position or speed as operating loads vary.
The motor uses a flange that measures 104 mm, allowing direct attachment to compatible IEC-sized gearboxes and machine mounting surfaces. Electrical terminations are provided through a rotatable angular connector or terminal box, so cables can exit in the direction required by the equipment layout. Rotor position is reported through OCT multi-turn feedback, enabling absolute position tracking across multiple shaft revolutions without battery support. Dynamic power characteristics correspond to winding code J, which sets the phase resistance and current limits used by the compatible Beckhoff drive. The motor has an overall length code 2, indicating the axial housing configuration used for this model. Its synchronous design provides controlled torque over repeated acceleration, deceleration, and reversing cycles.
For load-holding duties, the unit includes a 24 V holding brake that clamps the shaft when holding force is required. The brake provides a static holding torque ranging from 9 Nm to 20 Nm, depending on the applicable motor stack length. The output shaft is machined with a groove and feather key in accordance with DIN 6885, providing positive torque transmission to a coupling while maintaining alignment. Beckhoff designates the mechanical interface as an AM3x5-compatible flange and shaft. The keyed shaft supports couplings that require positive engagement rather than relying only on friction from a clamping hub. The flange centers the motor on the mating surface, while the mounting fasteners secure the housing against movement under changing torque loads.
